Stephen palmer



2 Sheets-Sheei 1. S. PALMER.

SASH 00m) GUIDE. P Patented Oct. 30, 1888.

witne sses:

(ModeL) 2 Sheets-Sheet 2. S. PALMER.

SASH CORD GUIDE.

N0. 391,817. Paterted 001:. 3 0, 1888.

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Witnesses: Inventor! N. FETERS. Phnwumn lwr, Washmgkm. u c.

ljwiTn STATES ATFNT STEPHEN PALMER, OF LANSINGBURG, NEV YORK.

SASH-CORD GUIDE.

SPECIFICATION forming part of Letters Patent No. 391,817, dated October 30, 1888.

Application filed February '27, 1883.

T aZZ whom, it 12mg concern:

Be it known that LSrnriiniv PALMER, a resident of Lansingburg, in the county of liens selaer and State of New York, have invented certain new and useful Improvements in Sash- Balance Gases; and I do hereby declare that the following is a full, clear, and exact description of the invention, that will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

Similar letters refer to similar parts in the several figures therein.

My invention relates to improvements in saslrbalanee cases made of sheet metal; and it consists of the novel construction and combination of parts hereinafter described, and pointed out in the claims.

Figure l of the drawings is a front face view of my improved device shown without a faceplate. Figs. 2 and 3 are respectively side and end views of the device shown in Fig. 1. Fig. 4 is a plan view of a sheet-metal blank adapted to be swaged into the proper shape to form onehalf section of the completed sashbalance case. Fig. 5 is a front face view of a completed case provided with a face-plate. Fig. 6 is a cross-section of same, taken on the brok'e'ii line bc i'n"Fig. 5. Fig. 7 is a plan view of a sheetmetal blank adapted to be swaged into the proper shape to form a face plate for the case. Fig. 8 is a cross-section of the same, taken at the broken line a 00 in Fig. 7. Fig. 9 is a similar section of the blank after the inner and outer edges have been swaged down to form right'angular flanges. Fig. 10 is a front face view of a modified form of case without faceplate. Fig. 11 is a cross section of the same, taken on the broken line a x in Fig. 10. Fig. 12 is a front face view of the case shown in Figs. 10 and 11, provided with a face-plate. Fig. 18 is a longitudinal section of the blank shown in Fig. 7, taken on the broken line 3 3 in that figure.

In my application for a United States Patent for improvements in the construction of sash-balances, filed November 25, 1887, and given the Serial No. 256,034, which application is still pending in the United States Pat- Serial No. 265.408. (Model) ent Office, I showed and described a method of making sash-balances and stated the gen eral objects of the invention, to which description reference may be had, as I make use of that method in the construction of the device which forms the subject of this application.

The obj ectsof this invention include those set forth in said application Serial N 0. 256,034- viz., to facilitate the operation ofshipping large quantities in bulk without injury to the sashbalances, to diminish their weight; to give their cases flexibility, by which the operation of successfully inserting them in mortises made to receive them is attended with much less danger of splitting the wood in which the case receiving mortise is made than if the case were made, as is commonly done, of rigid cast metal; also, to insure greater uniformity in size and form; and my present invention has for a further object providing the various forms of sheetmetal cases shown, when desired, with a thin sheet-metal face-plate with end flanged extensions to serve as attachingears, as more fully explained hereinafter.

The approved forms of cases for sash-balances now in use are made of cast-iron, and are provided with end swells, or with a succession of swells on their sides, adapted to fit the am ger-lioles of which the mortise formed to receive them is made. I prefer to make the case of myimproved device with similar swells to fit the auger-holes, although the case may have its sides straight and fiat when provided with a retroverted flange along its face edge, as hereinafter more fully explained.

I first cut out from sheet metal blanks of the required shape to form, when swaged up, one side or half'scction of the desired case. I then swagc the blanks in dies to give them the configuration required to produce the tubular swells adapted to fit the auger-holcs. The case is formed by securing two of these blanks to gether, so that their swells bulge outward and supplement each other to form tubular swells. The pulley or spring is inserted in the usual manner. I have shown a preferred form of blank, A, in Fig. 4, for producing a case with tubular swells like that shown in Figs. 1, 2, and The blank is swaged to form semitubular swells A on the ends and the interme- The projecting spurs B on diate swells, A.

one blank overlap the edges of the supplementing blank to hold the edges of the two blanks in alignment, as shown in Fig. 3. The slots B in one of the blanks of the supplementing pair of blanks unite with those in the other blank to form apertures B in the ends of the case adapted to receive an attaching nail or screw driven into the wall of the caseeontaining mortise. The spurs B form marking-spurs, being located at the proper distance apart to indicate, when pressed into the wood where the mortise is to be made, the proper place to insert the auger in boring the holes for the mortise. The projection A serves to unite the blanks on one side to stiffen the case and form aguide for the cord when passed over the pulley P. The blanks may be formed without this projection when desired, as indicated by the broken line in Fig. 4. The blank is also provided with a'eentral opening, A adapted to receive and support the pulleyaxle I To utilize sheet metal of minimum thickness, I provide the blanks with corrugations or depressions and elevations, as shown at A in Figs. 2, 3, and 6, which may be termed stiiieningribs, which may be produced as shown, or by a series of round or angular indentations stamped into the blank at approximately equal depths, which, like the corrugations shown, follow the general outline of the case, all which corrugations are designed to stiffen the case transversely, and references herein to stiffening-ribs apply to these features, and by the use of this term I hereby disclaim any reference to tubulur swellings or fastening-ribs running crosswise of the case, shown in older devices of cast metal provided to adapt them to fit a mortise formed of conjoined auger-holes. These ribs may be formed by the same die which forms the swells and at the same operation.

When desired, the swells may be dispensed with, provided a retroverted flange, A is formed on the face edge of the blanks or case, as shown in Figs. 10 and 11. This flange A not only supplements the stiii'ening'ribs in stiffening the sides of the case, but prevents the case from sinking too deep in the mortise, as well as covers the face edges of the mortise, and when desired may be provided with notches or holes, through which it may be fastened by brads or screws.

In Figs. 1, 2, and,3 I have shown the device without a face-plate, but I prefer to provide a sheet metal face-plate for the purpose of producing a better finish and means for more firmly securing it in the mortise.

I have shown in Figs. 7 and 13 two forms of blanks, 0, cut from sheet metal by suitable dies, adapted to form face-plates for sash-balance cases. The blanks shown are adapted to be secured upon any form of oblong sheetmetal cases provided with retroverted flanges on their face edges being provided with a cen tral slot and perforations. The outer edges of the blank and its inner edges surrounding the slot 0 are bent down by swaging-dies to form the outer flange, O and the inner flange, C, after which operation a plan view of its face is like that shown in Fig. 5. The plate so formed is then placed upon the face of the case with the inner flange within the case and the outer flange inclosing the case. The outer flange is then introverted and bent around the outwardly-projecting edges A of the case, or a retroverted flange, like A (shown in Fig. 11,) to form a retaining'flange, C, Fig. 6, leaving the flanges G standing at nearly right angles with the face on the ends projecting beyond the case for the purpose of stiffening and strengthening these projections, which are designed for attaching ears, and which are thus made sufficiently rigid to sustain the weight of the sash and its counterpoise. The plate is thus securely held upon the case, and the outer flange prevents the sides of the case from spreading, and the inner flange prevents the sides of the case from being crowded toward each other, thus greatly strengthening the case, and at the same time giving it a finished and ornamental appearance. The points 0 are not bent down, but left projecting to form the marking spurs 0 as shown in Fig. 5.

I do not claim, broadly, a sheet-metal sashbalance case.

What I claim as new, and des re to secure by Letters Patent, is-

1. The combination, with the walls of a sheet metal sash balance case formed from struck-up blanks having elevations and corresponding depressions on their surfaces form ing stiffeningribs and retroverted face edges, of a sheet-metal faceplate provided with a central longitudinal slot, end perforations, and ease'wall abutting flanges formed along its inner edge, and having around its outer edge flanges turned at an approximate right angle wit-h its face and secured to the retroverted edge of the case-walls by the outer flange introverted thereon, the flanges on the attachingeai's which extend beyond the walls of the case at the ends being left at approximately right angles with the face, substantially as described.

2. A sash-balance case formed of sheet-metal blanks struck up with elevations and corresponding depressions on their surfaces to form stiffening ribs or corrugations, the face-edges of such blanks when so struck up being retroverted and provided with marking-spurs, substantially as described.

In testimony whereof I have hereunto set my hand this 25th day of February, 1888.

STEPHEN PALMER. Witnesses:

GEO. A. Most-inn, W. H. HOLLIsTER, Jr. 

